Interaction Scheme

Molecule

Untitled
Gallium cation

Host

Cx4
Cx4

c = 1600.0 µM

Indicator

Untitled
2,3-Diazabicyclo(2.2.2)oct-2-ene

c = 1000.0 µM

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 2.52⋅104 ± 2520.0 M-1
Kd =
logKa = 4.4 ± 0.04
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -25.12 ± 0.25 -6.0 ± 0.06
ΔH = 10.0 2.39
-TΔS = -32.0 -7.65
J mol-1 K-1 cal mol-1 K-1
ΔS = 107.3 25.7
These are the specifications of the determination of the experimental results.
Detection Method: Competitive
Assay Type: Competitive Binding Assay
Technique: Fluorescence
𝛌ex = 365.0 nm
Detailed information about the solvation.
Solvent System Complex Mixture
Solvents Deuterium Oxide
Additives sodium deuteroxide
pH 2.4
Please find here information about the dataset this interaction is part of.
Citation:

W. M. Nau, H. Bakirci, A. L. Koner, SupraBank 2024, Binding of inorganic cations by p-sulfonatocalix[4]arene monitored through competitive fluorophore displacement in aqueous solution (dataset). https://doi.org/10.34804/supra.20210928275

Link: https://doi.org/10.34804/supra.20210928275
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

H. Bakirci, A. L. Koner, W. M. Nau, Chem. Commun. 2005, 5411.

Link: https://doi.org/10.1039/B510319C
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Binding Isotherm Simulations


The plot depicts the binding isotherm simulation of a 1:1 interaction of Gallium cation (0.0007936507936507937 M) and Cx4 (0 — 0.0015873015873015873 M).